April

Tuesday, April 17 Corporations: Deposit the first installment of your 2018 estimated tax.

Tuesday, April 17 Household Employers: File Sch. H with Form 1040 if you paid $2,000 or more to a household employee.

Tuesday, April 17 Corporations: File Form 1120 for calendar year and pay any tax due. For automatic 6-month extension, file Form 7004 and deposit estimated tax.

Tuesday, April 17 Individuals: File Form 1040, 1040A, or 1040EZ. For automatic 6-month extension file Form 4868 and deposit estimated tax. Pay the first installment of 2018 estimated tax - Use Form 1040-ES.